Sash-lock.



(Applicatidn med June 4, 1900.)

(No llodel.)

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Uivrrnn STATES Artnr FICE@ SASH- LOCK.

SPECIFXGATION forming part of Letters Patent No. 673,783. dated May '7, 1901.

Application filed June 4, 1900.

To all wrmt it ntf/,y conceive:

Beit known that I, WILLIAM JOHN PETERS, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvementsin Sash-Locks, of which the following is a full, clear, and exact specification.

My invention relates to sash-locks for preventing one of the sashes from being raised with reference to the other, and more particularly to that class of locks designed for permitting the lower sash to be raised the desired distance and preventingit being raised further from the outside. Y

My invention has for its primary object to provide an improved and simple form of sashlock of this character which may be readily put in place when desired for preventing the lower sash being raised above a certain height.

Vith these ends in view my invention consists in certain features of novelty in the construction, combination, and arrangement of parts by which the said objects and certain other objects hereinafter appearing are attained, all as fully described, with reference to the accompanying drawings, and more particularly pointed out in the claims.

In the said drawings, Figure l is a vertical transverse sectional view of the two sashes of a window, showing the lower one partly raised and locked by means of my improved sashlock. Fig. 2 is an enlarged transverse sectional view, partly broken away, showing the lock in position, but the sash lowered. Fig. 3 is a similar View showing the sash raised and the lock in position. Fig. 4c is a plan or pattern view of the blank from which the invention is formed. Fig. 5 is a perspective view of the lock; and Fig. 6 isa longitudinal sectional view of the lock, illustrating a modified form hereinafter described.

l represents the window-frame, 2 the upper sash, and 3 the lower sash, which is usually separated from the upper sash by a parting-strip 4., all of which may be of the usual or any suitable construction.

5 represents my improved sash-lock, which is made in the form of a wedge, as clearly shown in the drawings, and adapted to be placed with its sharpened end turned downwardly between the two sashes, and when in use it is secured by a screw or other equiva- Serial No. 18,944. (No model.)

lent device 6 on the side ol the upper sash, so that when the lower sash is raised it will strike the inclined surface of the wedge and rend to force it against the upper sash with greater pressure. Ordinarily the wedgingaetion of the device between the two sashes might alone be sufficient to lock the lower sash against `furtherupward movement; but in order to insure against the possibility of the wedge sliding on the upper sash l provide the inner face of the wedge with spurs or teeth 7, which are turned upwardly and dig into the upper sash sufiiciently to prevent the wedge from moving with the lower sash, while at the same time being so short as to result in little or no damage tothe wood work.

The screw 6 is driven into the upper sash until its head may be freely cleared by the lower sash, and it is locked at a distance from the lower sash equal to the height which it is desired that the lower sash may be raised. When it is not desired to restrict the upward movement of the lower sash, the wedge or lock 5 is removed from the screw 6 and may be left suspended from the side of the frame l by means of a chain or other attachment S secured to the frame in any suitable way.

In placing the wedge 5 in position to lock the lower sash it is held in a horizontal position, with the butt-end of the wedge toward the upper sash, and an opening 9 at the upper end of a slot l0 in the wedge 5 is passed over the head of the screw 6, the opening 9 being as large as the head and the slot lO being smaller than the head, so that after the head has entered the wedge may be turned downwardly in a vertical position, whereby the head will engage under that portion l1 of the edge of the slot l0 which extends horizon tally from the opening 9 to the corner of the butt-end of the wedge, as better shown in Fig. et, the portion of the wedge in which the slotand opening 9 are formed being composed of sheet material. The slot l0 extends down the wedge a considerable distance, and its edges are pressed inwardly, so as to form a gradually-increasing incline l2, which as the wedge is raised relatively to the screw 6 engages under the head of the screw and forces the spurs 7 firmly against and into the upper sash.

In the form of the invention shown in Fig.

IOO

5 the wedgef is preferably composed of a singie piece of sheet material, which is first given the form of the blank shown in Fig. 4. In the formation of this blank into the Wedge the corners 13 are bent up along the dotted lines 14 to form the sides of the wedge, and the tongue-shaped piece 15 is then bent backwardly or upwardly along the corners 13 and the eXtreme end of the tongue 15 finally bent over the ends of the corners 13 along the line 16 and clenched down over the back of the blank, as shown at 17 in Fig. 5. 18 is a perforation for the attachment of the chain 8,

4end 19 is a notch in the end of the tongue 15,

which permits the link of the chain to be looped through the perforation 18 without interference.

In the form of the invention shown in Fig. 6I em ploy a wooden block 20, which is Wedge'- shaped and has secured to oneside thereof by means of screws 21 a sheet of metal 22, whose end is bent over the butt-end of the wedgeblock 2O and secured by screws 23. At the point where the slot 10 is formed the block is cut away, as shown at 24, so as to leave room for the passage of the screw-heads 6.

Having thus described my invention, what I claim as new therein, and desire to secure by Letters Patent, is

1. .As a new and useful article of manufacture a sash-lock consisting of a wedge-shaped member having a slot formed through the upper end and along and down the side thereof, the upper end of said slot being enlarged for the reception of a headed pin for supporting said wedge-shaped member, substantially as set forth.

2. As a new and useful article of manufacture a sash-lock consisting of a wedge-shaped member having a slot in the side thereof for the reception of a headed pin or support, the edges of said slot being provided with the incline 12, substantially as and for the purpose set forth.

3. In a sashlock the combination of a headed pin or support, and a wedge-shaped member having spurs on one side thereof and aslot provided with inclined edges on the same side thereof, said headed pin being inserted in said slot and the head thereof engaging with said inclined edges, substantially as set forth.

4. As a new and useful article of manufacture a sash-lock consisting of a sheet of material having the corners 13 bent upwardly to form the sides of the wedge and the tongue 15 turned back along said corners and folded over the ends of said corners to form the buttend of the wedge, substantially as set forth.

WILLIAM J. PETERS.

Witnesses:

EDNA B. JOHNSON, F. A. HOPKINS. 

